We r trting t hr more and more concerns but limt hng. There r calls to tr t limit carbon emissions frm burning fil fuels nd even th need to mng limt hng whn it hn. But I propose that climate hng science is very uncertain. Th rth' climate is constantly hnging btwn ht g nd i ages. Hwvr th extent t which it i occurring is very muh linkd t population grwth. Rthr than get bggd dwn in arguments but climate hng I wnt t xmin mthing tht is undnibl; Ovrultin. Tim i running ut. Th mt fundmntl problem fing th world td i vrultin leading t llutin nd dgrdtin of th rth' environment n a massive l.